error[E0512]: transmute called with types of different sizes
  --> $DIR/transmute-different-sizes.rs:21:17
   |
LL |     let _: i8 = transmute(16i16);
   |                 ^^^^^^^^^
   |
   = note: source type: i16 (N bits)
   = note: target type: i8 (N bits)

error[E0512]: transmute called with types of different sizes
  --> $DIR/transmute-different-sizes.rs:26:17
   |
LL |     let _: i8 = transmute(x);
   |                 ^^^^^^^^^
   |
   = note: source type: &T (N bits)
   = note: target type: i8 (N bits)

error[E0512]: transmute called with types of different sizes
  --> $DIR/transmute-different-sizes.rs:37:5
   |
LL |     transmute(x)
   |     ^^^^^^^^^
   |
   = note: source type: u16 (N bits)
   = note: target type: <T as Specializable>::Output (this type's size can vary)

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0512`.